Non-Chemical Management
- Rotate crops. Do not plant susceptible crops repeatedly in the same location. At least 6 years are recommended between plantings.
- Test soil pH and adjust appropriately. The clubroot pathogen prefers acidic soils, so maintaining a soil pH of 6.8 or higher can help prevent disease. Adequate nutrition, especially calcium and magnesium, is also important.
- Good drainage is essential. Do not plant cole crops in poorly drained soils.
- Purchase only disease-free transplants and plant in clean soil.
- Control weeds (especially those in the mustard family), as they can serve as alternate hosts for the disease.
- Do not compost diseased plant material.
- Mildly affected plants can be hilled to encourage development of adventitious roots and increase yield.
Select non-chemical management options as your first choice!